The non-disclosure agreement has been lifted! I can finally publicly talk about amazing things in the game!
I've tried out several play combinations during the various betas and my favorite so far has to be choosing the Sorcerer and using a bow as my primary weapon. Focusing on the sorcerer spells gives me the unstable familiar, which I can eventually morph into a more powerful version, instant lightning casts, and a knockdown that, on proc, is free to cast and instant. Combine that with my bow's abilities and medium armor and I'm a DPS machine. It's an incredibly fun combination. The familiar and I bounce aggro back and forth so kiting is much easier and he even has his own AOE spells.
My second favorite was with dual wielding Nightblade. Who doesn't love to be a sneaky character stealthing around with an axe in one hand and a sword in the other. High damage and bleed combination. Wonderful fun.